OEM Carrier Spark Electrode Ignitor (48GS400168) for Model PY1PPB042090AAAA

This is the genuine OEM spark electrode ignitor assembly for the Carrier PY1PPB042090AAAA packaged gas unit. The ignitor's dual-rod electrode generates the high-voltage spark that ignites the gas burner on each heating call. When the ignitor assembly fails or cracks, the control board detects a failed ignition attempt and triggers a safety lockout — leaving you with no heat and a blinking fault code. Replacing this part with the factory-correct OEM assembly restores reliable ignition and clears lockout conditions.

• Specs: 2-rod spark electrode assembly | High-voltage ignitor cable connection | OEM part number 48GS400168 | Manufacturer description: Spark Electrode Ignitor | Weight: 0.07 lbs | Package dimensions: 3.80 × 1.40 × 4.90 in
• OEM vs Generic: This is a Factory Authorized Part manufactured to Carrier's exact electrode gap and ceramic insulator specifications. Generic igniters often have inconsistent rod spacing, leading to weak or misfired sparks and repeat lockouts.
• Install difficulty: 2/5 — Shut off gas supply and power to the unit before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers. Disconnect the high-voltage ignitor cable, remove the mounting screws, swap the electrode assembly, and reconnect. Always verify gas flow and run a full ignition test cycle before closing the unit.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY1PPB042090AAAA packaged gas unit. Verify your existing part number on the unit's wiring diagram or parts label before ordering — electrode assemblies vary by gas pack series and vintage. Our fitment team is available to confirm compatibility before you buy.